MESON Chess Problem Database
Problem Display
PID: 261580 (2nrR3/2p3NR/2Pk2r1/2N3b1/Qq1B2Pp/4nB1K/1p6/8 w - - 0 1)
Trumpy, Eugen
Neue Zurcher Zeitung, 1940
#2
10 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sb7#
- 1...Qd2
- 2.Sb7#
- 1...Qa3
- 2.Sb7#
- 1...Qc3
- 2.Sb7#
- 1...Qa5
- 2.Sb7#
- 1...Qxa4
- 2.Sb7#
- 1...Qc4
- 2.Sb7#
- 1...Qxd4
- 2.Sb7#
- 1...Qb7
- 2.Sxb7#
- 1...Re6
- 2.Rxe6#
- 1...Rxg7
- 2.Re6#
- 1...Rxe8
- 2.Sxe8#
- 1...Bf6
- 2.Re6#
- 1...Sd1
- 2.Sf5#
- 1...Sf1
- 2.Sf5#
- 1...Sc2
- 2.Sf5#
- 1...Sg2
- 2.Sf5#
- 1...Sc4
- 2.Sf5#
- 1...Sxg4
- 2.Sf5#
- 1...Sd5
- 2.Se4#
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sb6
- 2.Sb7#
- 1...Se7
- 2.Rxd8#
- 1...Qe1
- Tries
- 1.Rxd8+?
- 1...Bxd8
- 2.Se8#
- 1...Ke7!
- 1...Bxd8
- 1.Qb5?
- threat
- 2.Se4#
- 2.Sb7#
- 2.Be5#
- 1...Qxc5
- 2.Bxc5#
- 2.Qxc5#
- 1...Qxd4
- 2.Sb7#
- 1...Rxe8
- 2.Sxe8#
- 1...Sxg4
- 2.Se4#
- 2.Sb7#
- 2.Sf5#
- 1...b1Q
- 2.Sb7#
- 2.Be5#
- 1...b1B
- 2.Sb7#
- 2.Be5#
- 1...Qc3
- 2.Se4#
- 2.Sb7#
- 1...Re6
- 2.Sb7#
- 2.Rxe6#
- 1...Bf4
- 2.Se4#
- 2.Sb7#
- 1...Bf6
- 2.Se4#
- 2.Sb7#
- 2.Re6#
- 1...Be7
- 2.Se4#
- 2.Sb7#
- 1...Sc4
- 2.Se4#
- 2.Sb7#
- 2.Sf5#
- 1...Se7
- 2.Se4#
- 2.Sb7#
- 2.Rxd8#
- 1...Qxb5!
- threat
- 1.Qa3?
- threat
- 2.Sb7#
- 1...Qxc5
- 2.Bxc5#
- 2.Be5#
- 2.Qxc5#
- 1...Rxe8
- 2.Sxe8#
- 1...Qb7
- 2.Sxb7#
- 2.Be5#
- 1...Sd5!
- threat
- 1.Qxb4?
- threat
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 2.Be5#
- 1...Rxe8
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 2.Sxe8#
- 1...Sxg4
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 2.Sf5#
- 1...b1Q
- 2.Sb3#
- 2.Sb7#
- 2.Be5#
- 1...b1R
- 2.Sb3#
- 2.Sb7#
- 2.Be5#
- 1...Re6
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Scxe6#
- 2.Sb7#
- 2.Sd7#
- 2.Rxe6#
- 1...Rd7
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sxd7#
- 2.Be5#
- 1...Bf4
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 1...Bf6
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 2.Re6#
- 1...Be7
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 1...Sc2
- 2.Sb7#
- 2.Sf5#
- 2.Be5#
- 1...Sc4
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 2.Sf5#
- 1...Se7
- 2.Sb3#
- 2.Sd3#
- 2.Sa4#
- 2.Sa6#
- 2.Sce6#
- 2.Sb7#
- 2.Sd7#
- 2.Rxd8#
- 1...Sd5!
- threat
- 1.Rxd8+?
- Keys
- 1.Qc2!
- threat
- 2.Be5#
- 1...Qxc5
- 2.Bxc5#
- 2.Qxc5#
- 1...Qxd4
- 2.Sb7#
- 1...Rxe8
- 2.Sxe8#
- 1...Sxc2
- 2.Sf5#
- 1...Sxg4
- 2.Sf5#
- 1...Sd5
- 2.Se4#
- 1...Qc3
- 2.Sb7#
- 1...Qc4
- 2.Sb7#
- 1...Re6
- 2.Rxe6#
- 1...Bf4
- 2.Qxg6#
- 1...Bf6
- 2.Re6#
- 1...Be7
- 2.Qh2#
- 1...Sc4
- 2.Sf5#
- 1...Se7
- 2.Rxd8#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 12
- Sets
- Q(c);N_GUARD::S(F)
- Q(c);N_GUARD,XQ(C)::S(F)
- Q(c);N_GUARD,XB(D)::S(F)
- Q(c);N_GUARD::S(F),XQ(c)
- R(g);N_GUARD::R1(J),XR(g)
- R(g);N_GUARD,XS(H)::R1(J)
- R(j);XR(J)::S(H),XR(j)
- B(e);S_CUTR(g)::R1(J)
- S(b);N_GUARD::S(H)
- S(b);N_GUARD,XP(E)::S(H)
- S(b);N_GUARD::S(H),XS(b)
- S(i);S_CUTQ(c)::S(F)
- S(i);SBLOCK,S_CUTB(e)::R(J),XR(j)
- Tries
- Try
- R(J);CHECK,XR(j)
- Vars
- B(e);XR(J)::S(H)
- Refutation
- K(f);S_FLIGHT
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(c);XB(D)::S(F)
- R(j);XR(J)::S(H),XR(j)
- Refutation
- Q(c);XQ(C)
- Try
- Q(C);
- Threat
- S(F)
- Vars
- R(j);XR(J)::S(H),XR(j)
- Refutation
- S(b);
- Try
- Q(C);XQ(c)
- Threat
- DUALS(8)
- Refutation
- S(b);
- Try
- Actual
- Q(C);
- Threat
- B(D)
- Vars
- Q(c);N_GUARD,XB(D)::S(F)
- R(j);XR(J)::S(H),XR(j)
- S(b);N_GUARD,XQ(C)::S(H)
- S(b);N_GUARD,XP(E)::S(H)
- S(b);SBLOCK::S(F)
- Q(c);N_GUARD::S(F)
- R(g);N_GUARD::R1(J),XR(g)
- B(e);N_GUARD::QAR(C),XR(g)
- B(e);S_CUTR(g)::R1(J)
- B(e);N_GUARD::QAB(C)
- S(b);N_GUARD::S(H)
- S(i);SBLOCK,S_CUTB(e)::R(J),XR(j)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).